joyent/node — comment on commit 87339a22b1cc539259c02119bd7381006d56396d
File: lib/cluster.js line 69
By windyrobin:

I think we shouldn't set the uncaughtException here ,
the same to process.on("message") of worker process
these handler/setting should left to users to decide

for example ,when uncaughtException occurred ,I ususally log a error but not exit